Science

Grunerite is a mineral of the amphibole group of minerals with formula Fe7Si8O22(OH)2. It is the iron endmember of the grunerite-cummingtonite series. It is not…

The word ‘Trigonometry’ has been derived from Greek words ‘trigon’ meaning three angles and ‘metron’ which means measurement. The angles mπ/n (with m, n integers)…

Ammolite is a beautiful organic stone that’s formed from Aragonites inside the fossilized shells of Ammonites. It is made of the fossilized shells of ammonites,…

The word ‘Trigonometry’ has been derived from Greek words ‘trigon’ meaning three angles and ‘metron’ which means measurement. The angles mπ/n (with m, n integers)…

Amethyst is a violet variety of quartz often used in jewelry. It is a purple variety of quartz (SiO2) and owes its violet color to…

Amazonite (sometimes called “Amazon stone”) is a green variety of microcline feldspar. Is translucent to opaque feldspar gemstone with a pretty green color. It is…

The alums are a class of chemical compounds. Alums are double sulfate salts, with the general formula AM(SO4)2·12H2O, where A is a monovalent cation such…

Glass capacitors are used where the ultimate performance is required for RF circuits. Glass dielectric capacitors offer very high levels of performance, although their cost…

Amber is fossilized tree resin, which has been appreciated for its color and natural beauty since Neolithic times. Much valued from antiquity to the present…

Alexandrite The alexandrite variety displays a color change dependent upon the nature of ambient lighting. Alexandrite, with its chameleon-like qualities, is a rare variety of…

Alabaster is a mineral or rock that is soft and often used for carving, as well as being processed for plaster powder. It is compact…

Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating with microgranular quartz. It is a fine-grained variegated chalcedony having its colors arranged…